Register drive for dispensing pumps



Dec. 30, 1941. l C, Q HAZARD REGISTER DRIVE FOR DISPENSING- PUMPS Filed Aug. 21, 1936 5 Sheets-Sheet.. l

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Dec. 30, 1941. xc. s. HAZARD REGISTER DRIVE FOR `DISPENSING PUMPS .Filed Aug.` 21, w36 5 sheets-sheet s 152 f A j HHHII 11m nf'u'ii-lmmm c. s. HAZARD 2,267,793

REGISTER DR'IVE FOR DISPEA'NSING PUMPS f 5 sheets-sheet 4 Dec. 2.o,l 1941.

vFiled Aug. 2111936 INVENTOR (frail/e6 5 f/azard BY Y 47nd, 46247 fs f ATTORNEY Dec. 30, 1941. c. s.I HAZARD REGISTER DRIVE FOR DISPENSING PUMI'S Filed Aug. 21, 193e s shets-sheet s WM, M iRZ .mum Mm W5: q ,am l. 1 4%/ 0 0 Patented Dec. 30, 1941 REGISTER DRIVE FOR DISPENSING PUMPS Charles S. Hazard, New York, N. Y., assignor to Neptune Meter Company, a corporation of New Jersey Application August 21, 1936,.Serial No. 97,132

(Cl. 22h-95) Claims.

This inventionv is directed to improved dispensing pumps of the type u sed in gasoline iilling stations and elsewhere and is particularly applicable to constructions of this type having one or more registers capable of being reset after one dispensing operation and .prior to a succeeding operation.

One of the objects of the present invention is to provide a dispensing pump with a mechanically driven register for indicating the quantity and/or the cost of the liquid .dispensed in each transaction thereby avoiding the usual direct drive between the meter and the register or registers so that the load imposed on the meter is decreased rendering the meter more accurate in operation.

4A further object of the invention is to'provide a means for automatically resetting lthe register or registers to their initial or starting position as an incident to the normal operation of the dispensing pump thereby eliminating the necessity of utilizing manually actuated means for resetting the register.

A further object of the invention is to utilize a single source of power for actuating the register or registers in accordance with the quantity of liquid passing through the meter and for driving l a pump for forcing the liquid through the meter.

Another object of the invention is to utilize a single source of power to sequentially actuate a register resetting means, and -to drive the pump and the register to properly and accurately register the volume and/or cost ofthe liquid dispensed in each dispensing operation.

A. further object of the invention is to provide a price register actuating means driven independently of but controlled by the meter and including means to orient and control the price register so that it will indicate the cost of the liquid to the nearest cent.

Other and further objects of constructions embodying the present invention will appear from the following detailed description of my invention.v

In order to achieve the objects of the invention the mechanism, in a typical construction, may include Vthe usual motor actuated pump for lforcing liquid through a meter to the dispensing hose, and an auxiliary device also actuated by the pump motor and operable under the control of the meter to actuate-the register to indicate volume and/orthe cost of the liquid dispensed.

In that form of the invention more fully described hereafter the means for driving the :register from the -punpmotor includes a clutch releasably connecting the motor to the register. Clutch actuating means for controlling operation of the clutch are provided which include a system of planetary gearing certain of the elements of which are driven by the meter and others of which are driven by the pump motor. Preferably the elements of the clutch actuating means lwhich arepdriven by the pump motor are arranged so that they tend lto disengage the clutch elements permitting the register to stop while the elements of the clutch actuating means which are driven by the meter tend to move the f tering the units dial of the cost indicator at the y awayand parts being diagrammatically illusf nearest unit proportional to the quantity of liquid dispensed thereby denitely and positively indicatingto the customer the value of the liquid dispensed avoiding the termination of an operation with portions of two figures displayed and the possibility of confusion and dispute that may arise therefrom.:

In order that each transaction-may be individually registered on the device without vpossibility oi totaling more than one transaction, the mechanism preferably 'is provided also with automatic resetting means which if desired may be actuated by the pump motor, to reset the one or both of the registers to zero prior to each dispensing operation, thereby avoiding any possibility of inaccurate or faulty operation on the part of the pump attendant. 4

For a better understanding of the invention reference may be had to the accompanying drawings, ln which:

Figure 1 is a front elevation of a portion of a typical dispensing pump embodying the present invention, parts of the structure being broken` trated;

Figure 2 is a view in section taken on line 2--2 of Figure 1, and partly broken away to disclose certain structural features;

Figure 3 is an end view ingelevation of the register drive looking in the direction ofthe arrows 3 3 ofY Figure 1 with the planetary gearing thereof shown in broken lines;

Figure 4 is a sectional view of the clutch mechanism taken on line 4 4 of Figure 3;

Figure 5 is an 'end elevation of suitable resetting mechanism for the price and volume registers taken on line 5 5 of Figure 2 with the register drive removed;

Figure 6 is a sectional view of a portion of the resetting mechanism of Figures 1 and 5 taken on the line 6 6 of Figure 5;

Figure 7 is a perspective view of the control fingers for `aiding in the aligning of the drums of the cost register and for controlling the engagement of the reset trolleyy with the volume indicator; e

Figure 8 is an enlarged detail view of a typical transmission drive between the drums of the cost register, partly broken away to show further details thereof;

Figure 9 is an enlarged detail view of a mech-J anlsm for regulating the speed of operation of the cost register in accordance with changes in price of thevliquld dispensed, parts of the mechanism being broken away; l

Figure 10 is a diagrammatic side elevation of Jan. alternative construction embodying motor actuated means for driving price registers;

Figure ll is a sectional view taken on line li-ii of Figure 10 showing the gearing thereof inplan view;

Figure l2 illustrates an alternative construction of certain elements of the mechanism as applied to the construction of Figure l0; and

Figure 13 is a sectional view taken on line ifi-i3 of Figure 4 showingthe planetary gearing in elevation.

Illustrative of one embodiment of the invention, Figure 1 discloses a dispensing pump having both the volume and l2 to be advanced one unit on the dial i6. The

. dial iti may be divided into twenty units, for exboth volume and cost indicators, the volume indicator being driven directly from the meter while the costindicator is driven by the ypump motor. The construction illustrated includes a housing .2, supporting a pump 4 for forcing liquid through a meter 5 of any desired type to a dispensing hose l and nozzle 8. The meter 6 drives a volume indicator consisting of a dial I0, unit pointer i2 and fractional unit pointer i4 'which indicate the volume of liquid dispensed in a known manner. As the meter 6 is actuated by passage 'of liquid therethrough it rotates a train of gears (Figures 2 and` 5) including gear i6, pinion i3 fixed to the lower end of shaft 20, pinion 22 xed to the upper end of shaft 210 and gear 26 xed to shaft 26. The latter shaft is provided with a worm 28 at its upper end meshing with worm gear 30 rotatably mounted on shaft 32 to which is fixed the fractional units pointer lli. Shaft 32 also carries a friction clutch 36 bearing against worm gear 30 to cause the pointer I4 to rotate therewith but permitting rotation of the shaft relative to gear 30 during y the resetting operation.

The units pointer l2 is driven from shaft 32 by reduction gearing including a. pinion 36 secured to-v shaft 32 and meshing with a. gear 38 supported on shaft 40 and rotatable therewith` ample, each of which is the equivalent of one gallon in which case the gear ratio of the reduction gears will be twenty to one requiring twenty revolutions of fractions pointer I4 to produce one complete revolution of units pointer i2.

If it is desired t0 totalize the quantity Of liquid dispensed for a plurality of dispensing operations, a small register 49 (Figure 2) may be driven by the meter 6 through worm 50 on shaft 26 and worm gears 52 and 54 fixed to transverse shaft 56. The register 48 may be of any desired type, its particular construction forming no part of the present invention.

As best shown in Figures 1 and 2, the dispens.

ing device includes a register generally indicated as 58 of a suitable type which indicates the cost of the liquid dispensed during a dispensing operation and having numeral wheels which are displaced from an initial position in'an amount equal to the volume of liquid dispensed multiplied by the prevailing cost of the liquid per unit of volume. This register hereinafter referred to as the cost register is driven by the pump motor 5l, but is controlled by the meter 5 through suitable means which preferably include clutch actuating means serving to automatically establish and disestablish a driving relation between the pump motor'and the register.

Referring to Figure 5, as the meter 6 operates it drives pinion it and a train of gears 66 and 62 xedv to opposite ends of shaft 64 and gears .66 and 68 fixed to the opposite ends of vertical shaft 'it (Figures 2, 5 and 8) thereby driving a suitable 26, 1937. Briefly this mechanism consists of a gear train in which gears of different ratios carried by replaceable price targets 13 and 14 (Figures l and 2) may be substituted to drive an internally toothed gear l5`and move a pinion 'H meshing therewith in the path of a circle so as to rotate shaft 'i6 at a predetermined Speed with respect to the speed of rotation of meter 5. The gears of the target representing the price in units are adapted to vary the speed of the internally toothed gear l5 relative to the speed of the meter driven shaft 'l0 in accordance with the gear ratio of the particular price target selected. The gears of the price target indicating fractions vof a. unit operate to drive an eccentric 61 which engages and oscillates a lever 69 in such a manner as to cause the pinion 1|, carried by the lever', to move in the path of a, circle, the teeth ofthe pinion being always in engagement with the teeth of the internal gear 15. Each oscillation of the lever 69 causes the gears 1| and 15 in transmitting motion to the shaft 16 to gain or lose a certain number of teeth with respect to the rotation of the shaft 19 from which the internal gear l5 receives its motion, depending on the relative direction of rotation of the eccentric 67 and the shaft 73. Since the rotation thus imparted to shaft "I6 may be varied relative to the rotation of shaft i9 by reason of the oscillation of the lever 59, the effect is to add to or subtract from the rotation of `the shaft I9 an increment or decrement determined by the ratio of the gears of the fractions price target. The speed of rotation of the shaft 7S with respect to the meter, of course,l varies in accordance with the ratio of theV gears carried thereby, whereas the size and thereof in applicants aforementioned patent No.

Shaft 16 which is driven by the meter through the'price variator, drives the elements of the clutch actuating means by which the meter controls the operation of the cost register and the driving connection between the register and pump motor. Rotation of shaft 16 is transmitted through gear 11 and crown-gear 18 to vertical shaft 86 (Figures 1 and 2). Crownsgear 82 on l the lower end of shaft 80 meshes with spur gear 84 to drive horizontal shaft 86 carrying at its right hand end (Figures 1 and 13) a pinion 88 meshing with a gear 80. Gear 88 is secured to a smaller gear 82 and both gears are rotatably supported on a shaft 84 carried by a relatively larger gear 86 rotatably mounted on a stub shaft 88 coaxial with shaft- 86. The shaft 88 carries at its innermost end a gear |68 meshing with gear 82 while the outer' end of the shaft carries a clutch operating cam |82 (Fig. 4) The shaft 84 on which gears 80 and 82 rotateV is secured to gear 86 in a position eccentric to shafts 86 and 88 so that rotation of gear 86 causes gears 80 and -.82 to travel therewith about gears 88 and |00 respectively which thus serve -as .the sun gears of a planetary system. However since gears 80 and 82 are of unequal size, any rotation of thesev gears about gears 88 and |80 must be accom-I.

panied by compensating rotation of either meter driven gear 88 or cam actuating gear |00.

Movement of the clutch actuating cam |02 is controlled by the planetary system in response to a diiferential in the corresponding rates of operation of the meter and the motor driven register to actuate the clutch mechanism. The clutch shown comprises two angularly disposed disks |04 and |06 (Figures 1 and 4) the former being xed to a shaft |08 journalled in the framework of the register housing and rotated by motor 51 through a belt or chain and cooperating pulleys ||2 and ||4. Clutch disks |04 and |06 carry cooperating pins ||8 and |28 respectively which engage to establish a driving connection between motor driven shaft |88 and shaft |22. The pin is slidably supported in disk |06 and is urged outwardly by a spring |24 permitting the pin |20 to retract slightly if it strikes the disk |04. Clutch disk |66 is keyed to shaft |22 for sliding movement thereon and is normally urged toward disk |04 by spring |26. However, clutch disk. |06 may be moved longitudinally away from disk |04 against the action of spring |26 to terminate the driving relation by operation of the cam |02 of the clutch actuating means. For this .purpose the disk |06 is provided with a peripheral groove |28 receiving pins or rollers |30 carried by a yoke |32 (Figures 2 and 4) at one end'of a bell crank lever |34 pivotally supported at |38 on the framework. The opposite end of the bellcrank lever l|34 is provided with a yoke |38 carrying a roller cam.' |82 rotates in the opposite direction bell crank |36 moves in a clockwise direction to reestablish the driving relation.

When driving the cost register, shaft |22 is rotated by motor 51 through the clutch pins H8.

and |20. A pinion |42 fixed to the outer end of shaft |22`rotates interconnected gears .|44 and |46 (Figures 1 and 3) the latter meshing with a large gear 48 iixed on the main drive shaft |50 of the cost register 58. This train of gears, namely, gears |42, |44, |46 and |48 transmits the rotation of the motor driven shaft |22 tothe cost register58 to drive the same.

The motor driven elements of the planetary gear system for actuating the clutch cam |02 are driven by gear |58 mounted on the main register drive shaft |50 (Figs. 3, 4 and 13). 'Ihe gear |58 meshes with the idler pinion |62 that in turn drives a second idler pinion |64 meshing with the large gear 86 of the planetary gear system. The gear 86 which carries eccentric shaft 84 on which gears 80 and 82 are mounted is thus rotated by the pump motor through the driving connection to the register. members are engaged the gears 90 and 82 therevfore are carried by the gear 86 and rotate about gears 88 and |00 as the gear 86 rotates.

The operation of the clutch actuating mechanism described is as follows:

When the pump motor is energized prior to the dispensing of liquid, the meter is not driven and the clutch disk |06 is disengaged from the clutch disk |04 so that the register is not driven.

Thereafter on operation of the meter, shaft 86 is rotated driving gear 88 and rotating gears 80 and 82. At this time the gear 86 and shaft 84 are l stationary since no driving connection has been 'established between the pump motor and the register, therefore gears and 82 which are ofl unequal size drive gear |00 which is secured to shaft 88 to rotate the clutch cam |02. The bell cra'nk |34 is then actuated by the clutch cam causing the clutch disk |06 to be moved into position to bring the pin |20 carried thereby into engagement with pin ||8 on the clutch disk |04 establishing a driving connection between the motor and the register through shaft |22 and gears |42, |44, |46 and |48. The register is then driven by the pump motor. At the same time gear |48 also drives gear |58 and gears |52 and |64 to rotate gear 86 of the clutch actuated y equal size they would rotate gear |00 were it not for the fact that gear 88 is driven by the meter. The speed of rotaton of the gear 88 by the meter I is such that the gear |00 and clutch cam |02 will |48 which is urged against cam |02 by spring |26. With this construction, if the cam |02 is rotated in a 'clockwise direction as viewed in Fisure 3 the bell crank lever |36 will be rotated in a counter-clockwiseV direction as viewed in Figure 4, and the clutch pin |20 will be moved out of engagement with pin ||8 on clutch disk |04, thereby terminating rotation of shaft |22 until the pins ||8 and |20 again engage. When the remain stationary as long as the operation of the cost register 58 corresponds to the operation of the meter. However, upon termination of a dispensing operation, which causes the meter to cease rotating, or upon operation of the register faster than the meter, the gear 88 ceases to` rotate J or fails to rotate fast enough to permit idling -of the gear 82 about the gear |00. At such times g the gear 88 lags causing a compensating rotation of gear |00 and shaft 88 thereby actuating the clutch operating cam |02 to disengage the clutch members and terminate the register drive.

In normal operation it is preferred that the pump motor tend to drive the register faster than .permitted by the'meter so that the pump motor continually tends to jrotate the clutch cam in s uch a way that itv will disconnect the driving When the clutch motor and the register.

relation betweenI the pump motor and the register. On the other hand the meter tends to rotate the clutch cam in a direction which establishes the driving connection between the pump Thus in operation the motor driven elements of the planetary system serve to -disengage the register drive whereas the meter driven elements of the system reestablish the drive. In this way the operation of the register is controlled' by the meter 'to accurately indicate the operation of the meter although the actual drive of the register may be momentarily interrupted from time to time as the driving connection is disestablished and reestablished.

The cost register employed may be of `any desired type such as that disclosed in applicants copending application Serial No. 83,030 :tiled June 2, 1936, but for purposes of explanation it is illustrated in Figures 2 and 5 as of conventional type including the usual units drum |66, tens drum |66 and hundreds drum |10 individually supported for rotation on a shaft |12 in the framework of the register 56 and visible to the attendant and patron through the Windows |713 in the register housing. The register drive shaft |50 actuates the units drum |66 through a gear |70 ilxed to shaft |50 and meshing with idler gear |16 which in turn drives gear |76 xed to drum |66. Shaft |50 also carries a two tooth mutilated gear |80 ilxed thereon for intermittently rotating an idler pinion |82 (Figures 2 and 7) which in turn rotates a gear |80 rotatably mounted on shaft |50 for displacing the tens drum |68 one tens unit for every complete rotation of the units drum |66.

In a like manner and through a similar system of gearing the hundreds drum is driven from the tens drum |68, displacement of one numeral on the hundreds drum being produced by each complete revolution of the tens drum, until a dispensing transaction is concluded by closing the valve |66 in the hose nozzle, terminating operation of meter6 by stoppage of liquid iiow therethrough.

In the operation of the cost register it is desira'ole that the movement of the units drum |66 be such that a dispensing operation can not vbe terminated with a portion of two numbers appearing in the window |13, through which the units numeral drum is observed. In order to accomplish this the mechanism may be provided with means for advancing the units drum step by step so that each number will be wholly visible until the drum is moved on to display thenext numeral' and portions of two numbers will not be presented at the window. The construction illustrated for effecting this result embodies a hub |52 xed to the main drive shaft |50 of the cost register and provided with a star-shaped member |54 which cooperates with a spring detent |08 for advancing the numeral wheels in steps of a full unit each. The star-shaped member is provided with a pair of arcuate slots |55 through which extend a pair of pins |56 projecting from the face of the gear |58 which is rotatably mounted on shaft |50. The pins |56 are nor mally retained centrally of the slots |55 by means of spring lingers |60 fixed to hub |52, the starshaped member |54 and gear |58 thus permitting limited movement relative to the hub |52 in driving the shaft |50.

In the driving of the cost register by the pump motor the operation of the clutch members may at times cause slight interruptions or apparent irregularities in the rotation of the numeral caemos drums of the register which if observed by the customer might be confusing. It may therefore be desirable in some cases to cover the numeral drums during the dispensing operation or when the movement of the cost register is not exactly synchronized with the movement of the volume register. As best shown in Figure 3 the dispensing device therefore'may include a pair of shutters |50 and |92 supported at opposite ends of a lever |94 pivotally mounted on the frame of register 58 for oscillatory movement to cover and uncover the exposed'faces of the drums |66, |68 and |10. The shutters |90 and |92 may be swung into drum covering position in any desired manner during the dispensing operation but they have been illustrated as being moved by means of a link |96 pivotally connected to lever |94 and to a bellcrank |95 pivotally mounted in the frame of the device. The bell crank in turn is connected by link |98 to clutch actuating bell crank |36. With this construction the shutters |90 and |92 are moved into indicator drum covering relation when the clutch elements are disconnected and into uncovering relation when the cost register is being driven by the motor. If desired a loose connection including sleeve |61 and spring |96 may be interposed in the link |96 or else- .where to prevent rapid or intermittent movement of the clutch from producing ickering of the shutters allowing the shutters to remain either fully open or fully closed while liquid is being dispensed but to be fully opened when the operation is terminated and the clutch remains disengaged.

Resettng mechanism In order to reset the cost and volume registers to their original zero position after onel dispensf -ing operation and prior to another dispensing operation suitable resetting means may be pro-i vided. That shown in the drawings is automati- In this construction a hose support 260 is pivoted at 202 in the framework of the device and is held in its lowermost position by its ownweight and also by the weight of hose l and nozzle 8 when the latter is placed thereon. When the nozzle 8 is removed from the support 200, the support may be lifted upwardly displacing a small bellcrank lever 204 pivoted on the frame of the device so that it is moved in a clockwise direction and acts through link 206 to throw motor switch 208 tov on position. Simultaneously, therewith a. valve 2|!! in a bypass 2|2 extending from the outlet side of pump 4 to the inlet side thereof is opened by means of link 2|4 vconnected to hose .support 200 whereby liquid discharged by the pump 4 is merely recirculated instead of being forced through the meter 6.

'I'he motor 51 drives sprockets 2|6 and 2|8 over which chain 220 passes (Fig. 1) to rotate gears 222 and 224 and shaft 226. Gear 228 at the upper end of shaft 226 meshes with gear 230 secured to barrel gear 232 which transmits rotation to a resetting clutch and idler member 284. 'I'his idler and clutch consists generally of a sleeve 236 having spaced iia-nges 238 thereon receiving a yoke 240 pivotally connected to the framework of the device below the sleeve 286 and urged in a counterclockwise direction (Figures 1 and 5) by a tension spring 242. Yoke 240 carries a pin or roller 244 (Figure l) which is engageable with an maimed cam 246 on the lower edge of the hose support 288. thereby retaining c the yoke 248 against movement to the left (Figure 1) when the hose support 288 is in its lower position. When the support 288 is moved upwardly the cam 248 moves from behind the roller 24. permitting the yoke 248 to shift clutch element 248 on sleeve 238 to the left (Figures 1, 5 and 6) to engage and rotate a complementary clutch element 258 Ashiftable axially of and `rotatable with respect to resetting shaft 252. Clutch ele'- ment 258 is provided with a pair of diametrically spaced cams 254 concentric with shaft 252 which are urged by a spring 288 into engagement with rollers 258 carried on a pin 258 extending through shaft 252, the'rollers 258 being normally disposed' in the valleys the cams 258 causing resetting shaft 252 to rotate with sleeve 238.

As best shown in Figures 1 and 5, resetting shaft 252 is provided with a transversely disposed shaft 282 carryingpinions 284 and 288 at its" outer ends which mesh with opposed crow'n gears 288 and 218. The gears 288 and 218 are rotatably mounted on shaft 252 and operate first to reset the cost register 58 and thereafter to reset the'4 volume register to zero position. In resetting the cost register the gears 284 and 288 and crown gears 288 and 218 rotate together with shaft 252. Spur gear 212 which is integral with crown gear 2 88 rotates with shaft 252 and drives gear 214 of a reset trolley consisting yof three meshing gears 214, 218 and 218. The latter gears are rotatably mounted between two plates 288 swingably mounted on a shaft 282 which also supports gear 214. The plates 288 frictionally engage the sides of gear 218 tending to restrain it from rotating thereby causing the trolley including plates 288 and the gears 218 and 218 to swing upwardly until gear 218 engages with gear |14 on the register drive shaft |58.- .The drivev shaft is then driven in a direction to return -the units drum |88 toward zero position. Units drum in turn picks up the -tens and hundreds drums |88 and |18 by the operation of pawls 284 and ratchets 288 (Figure 8) Aof the type now used in register resets, returning all the drums to zero position. On reaching the zero position a stop pawl 288 engages a ratchet 288 (Figure 2) movable with the hundreds drum |18 to stop all the drums at zero position and also yto prevent further roiaiion of spur gear 212. and attached crown gear Continued rotation of reset shaft 252 after the cost register has been reset and gear 212 held against further rotation causes gears 284 and 288 carried by shaft 252 to rotate on crown gear 288 driving the opposite crown gear 218. A sleeve `282 to which crown gear 218 is secured is rotatable on shaft 252 and acts through spur gear 284 and-crown gear 288 to drive shaft 298. A crown gear 388 is secured to the lower end of shaft 288 and serves to drive a second swinging reset trolley similar to that employed for resetting the cost register 58. This reset trolley consists of three 3|2. The ngers 3|4 bear against three disks 3|8 (Figure 8) all of the disks being mounted on theregister drive shaft |58 and individually fixed one to each of the drive gears of the units, tens, and hundreds drums as shown inv Figure 8. Each of the disks 3I8 is provided with a. peripheral notch 328, the notches being aligned axially of drive shaft |58 when the same numerals on the -drums |88, |88 and |18 are aligned, and being disposed in a downwardly opening position when the cost register 58 is at zero position. The iingers 3|4 can then move upwardly into the notches 328 to raise link 3I8 and rotate lever 3|2 and' shaft 3l8 to swing the plates 388 and gear 388 of the reset trolley into mesh with a reset gear 322 fixed to units pointer'shaft 32. Rotation of the resetting shaft 252 is thus transmitted to the volume register to rotate it counterclockwise toward zero.

During the rotation of shaft 32, worm gear 38 is allowed to remain stationary through slippage of friction clutch 34 and shaft 48 is also permitted to remain stationary through slippage between gear 38 and friction clutch 42. Pinion 38 carries the usual pawl and a ratchet acting to pickup gear 48 on sleeve 45 to bring the units and fractional units pointers I4 and |2 back to zero position where a single tooth ratchet 323 on shaft 32 engages a pawl 324 pivotally supported on the framework to stop the volume register pointers at zero position. Further rotation of register reset shaft 252 is then prevented.

Continued rotation of the motor-driven sleeve member 238 and clutch elements 248 and 258 by the motor 51 causes the cams 254 (Figure 6) of the clutch element 258 to ride up on rollers 258 displacing clutch element 258- and sleeve 238 to A the right as viewed in Figure 1. Thefsupport 288 then drops and the cam l248 carried thereby passes downward behind the roller 244 preventing the yoke 248 from again moving to the left. The clutch element 243 is thus held disengaged from clutch element 258 and the rollers 258 again drop into the valleys adjacent cams 254 so that the motor 51 is disconnected from the reset shaft 252 and the register may be drivenV to register the cost 'of the liquid dispensed in the next operation, the reset trolleys disengaging -from the gears |14 and 322 by their own weight upon the disengagement of the clutch elements 248 and 258.

As support 288 drops after resetting of the register, the valve v2|8 in pumpbypass 2I2 is gears 382, 384 and 388 rotatably mounted between spaced plates 388. The plates 388 areiixed to a shaft 3|8-which is Journalled in the frame of the device at its opposite end with a lever 3|2 movableto swing the gear 388 into engagement with gear 322 of the volume indicator to 'reset the.

same. The shaft 3|8 and reset trolley are retrained against movement into a position to effect resetting of the volume registerduring resetting ofthe cost register by a series of rigidly connected fingers 3|4 pivotally supported in the frame of the register 88 and connected by llink 3 8 to lever closed and the liquid is directed from pump 4 to the meter 8. Thereafter upon opening valve |88 in the hose noLzle a dispensing operation can then take place and the cost and volume indicators will be actuated in the manner previously described.

The motor 51 is stopped when the hose and nozzle 8 are placed upon the support, a portion of thev nozzle engaging a pin 328 and displacing switch actuating bellcrank 284 tomove the switch to olf position terminating the operation.

'I'he mechanism, described above embodies means driven by the pump motor for actuating the cost'register while the volume register is driven directly from themeter. However, the invention may be used to drive both the cost and the volume register of a dispensing pump. The

drive means shown in Figures 10 and 11 maybe used for this purpose and includes a driving connection'between the motor and registers which is established and disestablished under normal conditions by means of `clutch Vmechanism operable to prevent drive of the indicators in advance of the meter. In this construction a shaft 336 driven from the motor 51 of Figure 1 by any sultable means is provided with a clutch element 332 cooperating with a complementary clutch element 334, slid'ably mounted on shaft 336 journalled in the frame of the dispensing device.

-The clutch elements are normally urged into driving relation to actuate the indicators by a spring 3.38 surrounding shaft 336 and urging the clutch element 334 to the left as viewed in Figure 10. However, the clutch elements may be disengaged when necessary to prevent overrunning of upper end of lever 342 for engaging clutch elewith the clutch member 332 on rotation of cam 334.

Power supplied by the motor toI shaft 338 is transmitted to a volume register such as that of Figure 1 through gear 348 rotatable with shaft 336 and meshing with an idler gear 356 which drives gear 366. The gear 366 carries a relatively fixed bevel gear 362 meshing with a similar bevel gear'364 fixed to vertical shaft 366 which drives the fractional units pointer of a volume register through suitable gearing such as that illustrated in Figure l. The units drive shaft of the indicator may be driven from the fractional units drive shaft or otherwise as desired to indicate the volume of liquid dispensed.

The cost register is. also driven from shaft 366 through a spur gear 368 which rotates planetary gear 316, and cost register drive gear 312 xed to vertical'shaft 314. The shaft 314 may be connected through a price variator device such as that of Figure 8 to a cost register similar to that of Figures 1 and 2 or of any other suitable type so that rotation ofshaft 336 is directly transmitted to both the cost and the` volume registers.

As in the case of the register drive of the first described modification the motor tends to drive the registers at a higher rate of speed than the meter .2 would normally drive them. Inorder to maintain the total amounts indicated on the registers proportional to the quantity of liquid dispensed, a type of planetary gearing similar to that shown in Figure 1 is utilized to rotate the clutch operating cam 346 -to engage and disengagethe clutch elements 332 and 334. To this end meter shaft 316 carries a pinion 318 meshing with a gear 386 rotatably mounted on a shaft 38. The shaft 38| is carried by planetary gear 3116 and is mounted eccentric to shaft 384 about '.vhieh gear 316 rotates. Gear 386 is formed integral with a smaller gear 382 which meshes with gear 386 to secure the shaft 384. The shaft 334 is provided with a clutch disk 388 having a pin 396 projecting therefrom to engage pin 392 carried by the clutch actuating cam 346. Y

The operation of the planetary gear system controlling the register drive by the meter in this construction is similar to the operation of thatv .of the construction of Figures 1 to9. Assuming the meter to be at rest and the clutchmembers 332 and 334 disengaged as at the start of a dispensing operation, the motor may be energized ment 334 to move the latter out of engagement aeeavoe without driving the registers. Thereafter on dispensing liquid from the device the meter will be driven rotating gear 318 to drive gears 386, 382 l and 386, the gear 316 and shaft 38| carried thereby remaining stationary. Rotation of, gear 386 causes shaft384 and disk 388 to be rotated bringing pin 396 into engagement with pin 392 on clutch operating cam 346. The cam is thus rotated to permit the lower'end of lever '342 to Swing t0 the right of Figure 10 bringing clutch members 332 and 334 into engagement for 'driving the cost and volume registers. v

Upon rotation of the registers faster than permitted by the meter or upon stopping of the I meter the motor continues to drive the registers and gear 316 through the clutch means. Rotation of gear 316 carries shaft 38| and gears 386 and 382 therewith about the gears 318 and 386. However. since gear 386 is larger than gear 382 the rotation of gear 386 in mesh with gear 318 when the latter is stationary or rotating relatively slowiy is accompanied by compensating rotation of gear 38E by gear 383. The Vshaft 363 is thus rotated moving clutch actuatingcam 346 through operation of the interposed disk 368 and pins 366 and 392. The rotation of cam 366 in this case is opposite to that on starting adispensing operation and serves to move the lower portion of lever 342 to the left (Figure 1o) moving the yoke eee and clutch member 344 to the 4right to disengage the clutch members and terminate the drive of the registers.

In normal operation of the parts described the motor tends to drive the registers faster than the meter so that the clutch operating cam tends -to terminate the motor drive while the meter tends to reestablish the drive. In this way accurate operation of the registers is assured since the motor ldrive Vis terminated when the meter slows down or .ceases to operate while the meter operation reestablishes the relation.

The resetting means employed when using the driving connection of Figures l0 and llmay be penthat the meter willoperate faster than the motor in which case it may be necessary for the .registers to continue tooperate after the meter has stopped and until they have registered the complete operation of the meter. For this purpose a lost motion connection may be provided between the meter and the clutch cam.

M embodied in thev construction of Figures 10 and 11 the means employed to-permit operation of theregister and meter at different speeds includes the pins 396 and 332 which enable the disk 388 actuated by the planetary gears to be moved without operating the clutch cam on separation of the pins 356 and 392. Thereafter if the meter should stop or slow down, the motor driven elements continue to rotate'- causing the planetary l gearing to rotate the clutch cam 346 until pin 392 again4 engages pin 386 and the cam is moved to .disengage the motor drive. With this construction the meter may run ahead of the motor by an amount sufficient to rotate the disk 388 one drive of the registers.

completerevolution (less the diameter of pin 392).

of the motor driven elements behind the meter may be increased further as desired by introducing idler plates 394 and 398 between disk 388 and As shown in Figure 12 the amount of lag clutch cam 340. A pin 338 carried by the plate 394 extends downward to be engaged by pin 380 on the disk 388 and extends upward to engage pin 488 on the idler plate 396. The pin 400 in turn extends upward to engage pin 392 on the clutch cam 348. With this construction ,the meter may operate to advance disk 388 substantially one complete revolution away from the pin 398 on the idler plate 394 and the idler plate may advance substantially another complete revolution to bring pin 398 into engagement with pin 488 on idler plate 398. lThe latter plate in turn m'ay rotate another revolution before pin 480 engages the pin 392 on the clutch cam,to start the motor Thereafter if the meter should stop 'or rotate more slowly than the registers, the registers will continue to be driven until enough to pick up the idler plate 394 and 398 to actuate the clutch cam and terminate the register drive. In this way accurate register operation is assured without frequent operation of the clutch.

Should it be4 desired to introduce either more or less lag between the motor and the registers the disk 388 rotates in the opposite direction far additional idler plates may be inserted or removed from between the disk 388 and the clutch cam When driving either one or both of the registers from the pump motor or any ,other motor employed for this purpose any suitable driving connection lmay be used in the place of that herein shown and described for the purpose of indicating the nature of the invention and a typical embodiment thereof.` Similarly theI form and typeof dispensing pump and resetting mechanism employed as well as other elements of the combination may be varied or omitted as desired to provide a preferred construction. It should therefore be understood that the embodiments of the invention herein shown and described are intended to be illustrative of the invention and are not intended to limit the scope thereof.

I claim: l

l. In a liquid dispensing device the combination of a meter, a pump, a motor for actuating the pump to force liquid through the meter, and

Y an indicator actuated by said motor under the control of the meter for displacing the indicator away from a predetermined position in proportionto the quantity of liquid dispensed and means actuated by said motor for resetting said indicator to initial position.

2. In a liquid dispensing device the combination of a meter, a pump, a motor for actuating said pump to force liquid through said meter, an indicator actuated by said meter for indieating the quantity of liquid dispensed and a register for indicating the cost of the quantity of liquid dispensed actuated by said motor under the control of the meter movable away from an initial position in proportion to the quantity of liquid dispensed.

3. In a liquid dispensing device the combinationof a meter, a pump, a motor for actuating said pump to torce liquid through said meter,

, an indicator actuated by said meter vmovable away from initial position in proportion to the quantity of liquid dispensed, a second indicator actuated by said motor under the control of said meter movable away from aninitial position in proportionv to the quantity of liquid dispensed, and power actuated means for resetting both 1ndicators to initial position.` l

4. In a liquid dispensing device the combination of a meter, a pump, a motor for actuating said pump to force liquid through said meter,` an indicator actuated by said meter movable away from in'tial position in proportion to the quantity of liquid dispensed, a second indicator actuated by said motor under the control of said meter` and also movable away from an initial position"` in proportion to the quantity of liquid dispensed, and means-actuated by said motor for resettingV both indicators to zero.

' 5. In a liquid dispensing device the combination of a meter, a pump, a motor for actuating by said motor under the control of the meter for.

displacing one of the indicators away from an initial position in proportion to the volume of liquid dispensed and means actuated by the meter for displacing the other of said indicators away from an initial position in proportion to the volume of liquid dispensed. i I

6. In a liquid dispensing device the combination of a meter, a pump, a. motor for actuating said pump to force liquid through said meter, an indicator for indicating the volume of liquid dispensed, a second indicator for indicating the cost of the liquid dispensed, and means actuated by said motor under the control of` the meter for displacing one of the indicators away from an initial position in proportion to the volume of liquid dispensed, means actuated by the meter for displacing the other of said indicators away from an initial position in proportion tothe volume of liquid dispensed and means actuated by said motor for resetting both indicators to an initialposition in proportion to the liquid dispensed, and means actuated by said motor for resetting both said indicators to initial position.

8. In a liquid dispensing device the combination of ameter, a pump, a volume indicator, a cost indicator, means .for resetting the indicators to zero, and a motor operatively connected to the Dump and to at least one of said indicators, and to the resetting means, for simultaneously actuating the pump to force liquid through the meter and to actuate the indicator in accordance with the oper-ation of the meter during a dispensing operation, and for actuating said resetting means to reset the indicators to zero prior to a subsequent dispensing operation.

- 9. In a liquid dispensing device the combination of a meter, a pump, a volume indicator, a *v oost indicator, means for resetting the indicators to zero, and a motor operativelyconnected to the pump and to both said indicators, and to the resetting means 4for simultaneously actuatingthe pump to force liquid through the meter "tity of liquid dispensed, a register for indicating the cost of the liquid dispensed, and drive means 'for said register actuated b y said pump motor,

and operatively connected to the meter for actuating said'register in accordance with the operation lof said meter.

1l. In a liquid dispensing device the combination of a meter, an indicatoractuated by said meter to indicate the quantity of liquid dispensed, a motor, a second indicator for indicating the `cost of the liquid dispensed, means variable in .rate of operation in accordance with variations in cost of a unit of liquid, said means operatively connecting the meter to said second indicator., and means driven by the motor and through said variable means to actuate said second indicator in accordance with the operation of the meter.

l2. In-a liquid dispensing device the combina-v tion of a meter, a register adapted to be moved away from a predetermined position in proportion to the quantity of liquid dispensed, a motor,

`a cam, means including a clutch actuated by said `cam connecting the motor to said register y for driving the register, and means including a planetary system actuated jointly by said meter and said motorior actuating said cam in accordance with the relative rates of operation of the meter and register, to engage and disengage i said clutch.

13. In a liquid dispensing device the combination of a meter, a registerresponsive to the op-V eration of the meter and movable away from a predetermined position in proportion to the quan 8 georges tity of liquid dispensed, a motor, means including a clutch connecting the motor to said regis-' ter for driving the register, a cam for actuating the clutch, 'and means responsive to a dinerential in the corresponding rates of operation of the meter and register for actuating said cam to move the clutch into engaged position when the rate of operation of the meter exceeds the` source, a motorV for driving said pump, a meter connected to the outlet side of said pump and connected to dispensing means for measuring liquid dispensed through said dispensing means, cost registering means and amount registering means, one of said registering means being oper-- ated by said 'meter and the other registering means being operated by said motor, registering the cost oi said liquid, and means for varying the speed of operation of one or said registering means in accordance with variatiom in the unit cost of said liquid per unit of measure.

15. In a liquid dispensing apparatus, the combination of a source of liquid supply, a pump, the suction side of which is connected to said source, a motor for driving said pump, a meter connected to the outlet side .of said pump and connected to dispensing means ,for measuring liquid dispensed through said dispensing means, at least two registering means for registering data respecting the liquid' dispensed, one of said registering means being operated by said meter and the other registeringK means being operated by said motor, and means for varying the speed of operation of one of said registe means relative to the other of said registering means.

CHARLES S. i1 MAD. 

